Timing Chain, Component Overview

Timing chain, component overview





1. Valve timing housing
2. 8 Nm
^ Replace
3. Camshaft timing chain
4. Camshaft adjuster - exhaust Identification:
5. Intermediate shaft
6. Thrust washer
7. 8 Nm
^ Install using locking fluid
^ Refer to Parts Supplier
8. Guide rail for timing chain
^ To remove it is first necessary to remove both upper and lower covers for timing chains
9. Pivot pin
10. Chain tensioner for camshaft timing chain, 40 Nm
11. Seal
^ Replace if damaged or leaking
12. Sprocket for drive chain for valve gear
13. Sprocket for camshaft timing chain
14. 60 Nm + 90° (1/4 turn) further
^ Replace
^ When loosening and tightening, counterhold vibration dam per with counterhold tool T10069
15. Chain tensioner with guide rail
^ For drive chain
^ Before installing, release locking spline in chain tensioner with a small screwdriver and press guide rail against chain tensioner
16. Drive sprocket chain
^ Integral part of chain
17. Drive chain for valve gear
^ Mark rotation direction before removing, Refer to Fig 1
18. Guide rail for drive chain for valve gear
19. Pin, 10 Nm
^ For guide rail
20. 18 Nm
21. 23 Nm
22. Camshaft adjuster - intake
^ Identification: 24E
23. 60 Nm + 90° (1/4 turn) further
^ Replace
^ Contact surface of sender wheel at bolt head must be dry when installing
^ To remove and install: counterhold with 32 mm open end wrench on camshaft
24. Guide rail for camshaft timing chain
25. Valve -1- for camshaft adjustment -N205
^ For intake camshaft
^ Mark electrical connector before disconnecting
26. Camshaft adjustment valve 1 (exhaust) - N318 -
^ For exhaust camshaft
^ Mark electrical connector before disconnecting
27. Guide rail for camshaft timing chain
^ Clipped onto valve timing housing





Fig. 1 Marking rotation direction of timing chains
^ Mark rotation direction of timing chains with colored arrows before removing (arrows).

Note: Do not mark chains using a center punch or by notching.